Behavior modeling of permanent magnet synchronous motors using flux linkages for coupling with circuit simulation

Abstract

Accurate PMSM drive simulation which utilizes a behavior model produced from FEA results to consider the nonlinear characteristics has been requested to evaluate the driving performance. This paper proposes an advanced behavior motor model based on the flux linkage model instead of the inductance model to be able to simplify the derivation of the equations and to reduce the amount of table data produced from FEA results. The effectiveness of the proposed model which includes the magnetic saturation and cross-coupling, moreover spatial harmonics is verified in the circuit simulation by comparing the direct FEA results and measurement result. The results of the proposed model agree fairly well with the FEA results and measurement result.